# CHM2210 PS 5

(2) What is the degree of unsaturation in a molecule with a molecular formula of

C8H11Br? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5

C8H11Br? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5

3

(3) How many units of unsaturation are in (Z)-8-chloro-3-methoxy-5-

methylenecyclooctene? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5

methylenecyclooctene? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5

3

(4) How many units of unsaturation are in spiro[8.9]octadecane?

(A) 1 (B) 2 (C) 3 (D) 4 (E) 5

(A) 1 (B) 2 (C) 3 (D) 4 (E) 5

2

(5) How many units of unsaturation are in spiro[4378.442]alkane?

(A) 1 (B) 2 (C) 3 (D) 4 (E) 5

(A) 1 (B) 2 (C) 3 (D) 4 (E) 5

2

(6) How many units of unsaturation are in norbornadiene?

(A) 1 (B) 2 (C) 3 (D) 4 (E) 5

(A) 1 (B) 2 (C) 3 (D) 4 (E) 5

4

(7) Which compound has the shortest carbon/carbon bond?

(A) acetylene (B) 1-pentene (C) cis-2-pentene (D) benzene (E) pentane

(A) acetylene (B) 1-pentene (C) cis-2-pentene (D) benzene (E) pentane

acetylene

(8) What is the equilibrium constant between the following:

[2-methyl-2-butene] <==> [the structure after rotating around the double bond] ?

(A) 10?²² (B) 10?¹ (C) 10? (D) 10¹ (E) 10²

[2-methyl-2-butene] <==> [the structure after rotating around the double bond] ?

(A) 10?²² (B) 10?¹ (C) 10? (D) 10¹ (E) 10²

10?

(9) How many double bonds does 1,4-divinylcyclohexane have?

(A) 1 (B) 2 (C) 3 (D) 4 (E) 5

(A) 1 (B) 2 (C) 3 (D) 4 (E) 5

2

(10) How many double bonds does 1,4-diallylcyclohexane have?

(A) 1 (B) 2 (C) 3 (D) 4 (E) 5

(A) 1 (B) 2 (C) 3 (D) 4 (E) 5

2

(11) How many units of unsaturation does 1,4-diallylcyclohexane have?

(A) 1 (B) 2 (C) 3 (D) 4 (E) 5

(A) 1 (B) 2 (C) 3 (D) 4 (E) 5

3

(15) How many different stereoisomers are there for 1,3-pentadiene?

(A) 1 (B) 2 (C) 3 (D) 4 (E) 5

(A) 1 (B) 2 (C) 3 (D) 4 (E) 5

2

(17) If a sesquiterpene has formula c15h24, how many carbons are in a hemiterpene?

(A) 0 (B) 5 (C) 10 (D) 12 (E) 15

(A) 0 (B) 5 (C) 10 (D) 12 (E) 15

5

(20) How many unique structures are there for a mono-alkene with formula c5h8? Count

enantiomeric pairs as one structure here.

(A) 8 (B) 9 (C) 10 (D) 11 (E) 12

enantiomeric pairs as one structure here.

(A) 8 (B) 9 (C) 10 (D) 11 (E) 12

12

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